US3314709A - Hydraulically operated mechanical grab - Google Patents

Hydraulically operated mechanical grab Download PDF

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Publication number
US3314709A
US3314709A US442328A US44232865A US3314709A US 3314709 A US3314709 A US 3314709A US 442328 A US442328 A US 442328A US 44232865 A US44232865 A US 44232865A US 3314709 A US3314709 A US 3314709A
Authority
US
United States
Prior art keywords
piston
piston rod
cylinder
grab
hydraulically operated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US442328A
Other languages
English (en)
Inventor
Gabriel L Guinot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Poclain SA
Original Assignee
Poclain SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Poclain SA filed Critical Poclain SA
Application granted granted Critical
Publication of US3314709A publication Critical patent/US3314709A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/14—Grabs opened or closed by driving motors thereon
    • B66C3/16—Grabs opened or closed by driving motors thereon by fluid motors
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Jib Cranes (AREA)
US442328A 1964-03-25 1965-03-24 Hydraulically operated mechanical grab Expired - Lifetime US3314709A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR968586A FR1398053A (fr) 1964-03-25 1964-03-25 Perfectionnements aux bennes preneuses

Publications (1)

Publication Number Publication Date
US3314709A true US3314709A (en) 1967-04-18

Family

ID=8826305

Family Applications (1)

Application Number Title Priority Date Filing Date
US442328A Expired - Lifetime US3314709A (en) 1964-03-25 1965-03-24 Hydraulically operated mechanical grab

Country Status (5)

Country Link
US (1) US3314709A (fr)
BE (1) BE769275Q (fr)
DE (1) DE1267813B (fr)
FR (1) FR1398053A (fr)
GB (1) GB1060187A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3421791A (en) * 1966-12-20 1969-01-14 Hiab Foco Ab Catching tool for a loading crane
US3451151A (en) * 1966-11-07 1969-06-24 Poclain Sa Bucket ejector assembly for an excavating grab
US3481640A (en) * 1966-11-24 1969-12-02 Poclain Sa Means for orientating the earth working implement of a mechanical earth working machine
US3759564A (en) * 1971-03-08 1973-09-18 Pierce Pacific Manuf Inc Grapple
US3795421A (en) * 1972-11-29 1974-03-05 P Vohl Grapple assembly
US3814471A (en) * 1971-01-18 1974-06-04 Poclain Sa Grab buckets
US3881263A (en) * 1973-04-18 1975-05-06 Poclain Sa Angular position controller for clam-shell bucket
US3914886A (en) * 1972-08-25 1975-10-28 Caterpillar Tractor Co Clamshell bucket assembly and valve means associated therewith
US5443294A (en) * 1993-09-22 1995-08-22 Hawco Manufacturing Co. Single-line clamshell bucket

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2487880A1 (fr) * 1981-01-21 1982-02-05 Poclain Sa Benne preneuse, notamment a coquilles
FR2563253B1 (fr) * 1984-04-20 1987-08-14 Lapalus Gaston Benne preneuse
AU2013245510B2 (en) * 2012-10-19 2017-09-28 Joy Global Surface Mining Inc Fluid conveyance system
DE202015005202U1 (de) * 2015-07-21 2016-10-24 Rolf Mieger Greifermechanik für den Greifer einer Baumaschine
DE202020104693U1 (de) 2020-08-13 2021-11-16 Rolf Mieger Antrieb für einen Greifer, Greifer und Baumaschine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US539962A (en) * 1895-05-28 Bucket for dredging-machines
FR1136481A (fr) * 1955-10-13 1957-05-23 Poclain Atel Benne-preneuse à commande hydraulique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3023044A (en) * 1956-04-03 1962-02-27 Joy Mfg Co Grapple
DE1808867U (de) * 1960-02-06 1960-03-31 Ahlmann Carlshuette K G Hydraulischer zwei- oder mehrschalengreifer.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US539962A (en) * 1895-05-28 Bucket for dredging-machines
FR1136481A (fr) * 1955-10-13 1957-05-23 Poclain Atel Benne-preneuse à commande hydraulique
DE1123264B (de) * 1955-10-13 1962-02-01 Poclain Atel Greiferbagger

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3451151A (en) * 1966-11-07 1969-06-24 Poclain Sa Bucket ejector assembly for an excavating grab
US3481640A (en) * 1966-11-24 1969-12-02 Poclain Sa Means for orientating the earth working implement of a mechanical earth working machine
US3421791A (en) * 1966-12-20 1969-01-14 Hiab Foco Ab Catching tool for a loading crane
US3814471A (en) * 1971-01-18 1974-06-04 Poclain Sa Grab buckets
US3759564A (en) * 1971-03-08 1973-09-18 Pierce Pacific Manuf Inc Grapple
US3914886A (en) * 1972-08-25 1975-10-28 Caterpillar Tractor Co Clamshell bucket assembly and valve means associated therewith
US3795421A (en) * 1972-11-29 1974-03-05 P Vohl Grapple assembly
US3881263A (en) * 1973-04-18 1975-05-06 Poclain Sa Angular position controller for clam-shell bucket
US5443294A (en) * 1993-09-22 1995-08-22 Hawco Manufacturing Co. Single-line clamshell bucket

Also Published As

Publication number Publication date
FR1398053A (fr) 1965-05-07
GB1060187A (en) 1967-03-01
BE769275Q (fr) 1971-11-03
DE1267813B (de) 1968-05-09

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